Scaffold-bracket.



am. 667,992. l Patented Fab. l2, |901` H. A. PATzoLn.

SCAFFDLD BRACKET- (Application filed Aug. 21., 1900.)

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HENRY A. PATZOLD, OF SALT LAKE CITY, UTAH.

SCAFFDLDMBHACKET.

SPECIFEZCACMUM forming' :cart of Letters Patent No. 667,992, datedFebruary 12, 1901.

Application led August 2l, 1900. Serial No. 27,617. r(No model.)

Be it known that l, HENRY A. PATZOLD, a citizen of the United States,residing` at Salt Lake City, in the county of Salt Lake and State ofUtah, have in vented new and useful Improvements in Scallold-Brackets,of which the following is a specification.

lily invention relates to scaiold-brackets, the object being to providea simple, durable, and e'ltective device of this character, which willbe especially adapted for the use oi' carpenters, but maybe employedwherever a scaffoldsupport is required.

The construction ot' the improved bracket will be fully describedhereinafter in connection with the accompanying drawings, which form apart ci this specification, and its novel `features will be dened in theappended claim.

ln the drawings, lligure 1 is an elevation of a portion of a framebuilding With two of my improved brackets applied thereto,the bracketsbeing shown in side elevation and adjusted to different positions; andFig. 2 is a plan view of one of the brackets.

The reference-n nineral 1 designates the side oil a frame building, and2 one of the rooftiinbers thereof.

rllhe standard of the device comprises parallel bars 3, connected attheir lower ends by a transverse bar l[not shown) and having their outeredges formed with a plurality of notches 5.

Between the upper ends oi the parallel bars 3 are pivotally secured, bymeans of a cross` pin 6, the ends of tuo parallel arms 7, formed attheir outer ends with lugs or projections S, which serve as stops forthe boards forming the lioorof the scaffold. Between the ends of thearms 7 an eyebolt 9 is mounted upon the pin or bolt 6. Upon the pivotalend of the eyebolt 9 is arranged a clamping-nut 10, having a projecting`handle 11.

l2 designates thc brace-bar of the bracket, pivotally secured at itsupper end between the outer ends of the arms 7 by means of a pivot-bolt13. rlhe lower end of the brace l2 is provided with a cross-rod 14, theends ot' which are formed with disks or heads. rlhis rod 14 is adaptedto t within the notches in the bars 3 to support the arms 7 in ahorizontal position. The inner edges of the bars 3 are formed withrecesses, within each of which is pivotally secured a dog or catch 16.The function of these dogs or catches 16 is illustrated at the upperportion of Fig. 1 in t-he drawings, said dogs or catches penetrating theroof-timber and serving to secure the bracket firmly upon the roof.

Vhen the bracket is to be used upon the side of a frame building, theeyebolt l) is passed between the stndding and through an opening in ablock i7, which is of sutlicient length to extend from one to another ofthe studding-timbers. The hand-nut 10 is then turned to clamp the block17 firmly against the studding. The brace l2 is then raised and itslower end is engaged with the notches in the bars 3, as illustrated inFig. l.

Vhen the bracket is to be used in the construction of a brick building,a suitable opening for the passage of the eyeholt must be made in theWall, and the secu1ing-block,cor responding to the block 17 shown in thedrawings, would necessarily be of greater length than in the case of aframe structure in order to aiord a wider bearing against the inner sideof the Wall to prevent damage to the masonry.

When the bracket is folded to the position shown at the upper portion ofFig. 1 for use upon a roof, the eyebolt 9 and its hand-nut 10 are ot' noservice and may be turned to a position between the bars 3, where theyWill be out of the Way.

lt will be obvious that the bracket con structed as above described maybe folded into a small compass when not required for use and may beeasily transported1 l claim- A scaffold-bracket com prisin g parallelbars formed with notches and recesses, and con stitnting the standardot' the bracket; parallel arms pivotally secured between the upper endsof said bars, and formed at their outer ends with upwardly-projectingstop-lugs; a brace pivotallysecured between theouterends of said arms; across-pin extending through the free end of said brace, and having en-In testimony whereof I afx my signature larged or headed'ends; dogs orcatches pivot.- in presence of two Witnesses. ally secured Wlthln therecesses of sald catchv HENRY A. PATZOLD.

bars; an eyebolt arranged .upon the pivotal 5 support 0f the arms; and aclamping-nut Witnesses:

on said eyebolt. provided with a projecting JAMES M. ANDERSON, handle.ADDIE E. PATZOLD.

